For the hottest of days opt for the men's Lifa baselayer t.shirt from Helly Hansen. This lightweight and quick-drying t.shirt actively draws moisture from the skin as well as allowing for maximum airflow to your body. Complete with flat-lock seams and a ventilating half zip fastening., Light weight insulation. Flat lock seams., 1/2 Zip chest construction. 125g/m2., Fitted. 125g/m2.